README.md

Analyze hotspots

This sample demonstrates how to execute a geoprocessing task to calculate a hotspot analysis based on the frequency of 911 calls. It calculates the frequency of these calls within a given study area during a specified constrained time period set between 1/1/1998 and 5/31/1998.

How it works

A GeoprocessingTask is created by setting the URL to the REST endpoint of a geoprocessing service. GeoprocessingParameters are created and the execution type is set to AsynchronousSubmit. Once the date ranges are selected, a query string is created with the to and from dates. A key/value parameter input is created, where the key is the string "Query" and the value is a GeoprocessingString that contains the query string. These parameter inputs are then added to the GeoprocessingParameters. A GeoprocessingJob is obtained by calling the createJob method of the GeoprocessingTask. The job is started, and once it is complete, the ArcGISMapImageLayer is obtained from the result, and added to the Map.